GR-7400 — Injector nozzle grinding machine

Name: DL-GR7400
SKU: 6304
Availability: InStock

The GR-7400-Machine for sharpening needles of atomizers and other bodies of rotation.

The machine is controlled using PWM regulators.
The spindle speed and workpiece rotation speed are adjusted via rotary knobs located on the control panel. The rotation speed is displayed as a percentage.
The brightness of the lower backlight for the rotating workpiece is adjusted using a rotary knob located on the upper section of the control panel.
The control panel features a main power switch and three individual switches for each motor drive and the lower backlight lamp.
On the rear side of the machine housing, there is a 220V power inlet connector, two 220V power outlets, and a 12V connector for connecting a monitor.
On the front side of the machine housing, there is a 12V connector for connecting the drive motor power cable for rotating workpieces.

The DL-GR7400 grinding machine can be used with the following kits:

DL-UNI20025 — Kit with 14 MP VGA / HDMI microscope with backlight, monitor, and stand;
DL-UNI20026 — Kit with 38 MP 1080P Full HD microscope (HDMI / USB);
DL-UNI20027 — Kit with 38 MP 1080P Full HD microscope (HDMI / USB);
DL-UNI20030 — Kit with 14 MP USB / HDMI microscope.

Each kit includes:

Industrial digital microscope;
holder;
Upper backlight;
Monitor.

*These kits are supplied separately (upon request / as a separate order).

https://www.youtube.com/watch?v=IGIs9oiupzQhttps://www.youtube.com/watch?v=pSYRQ4zpNWI

Set of Delivery

DL-GR7400. Grinding machine for the needles of nozzles

Part Number	Name	Qty
GR-7400	Piezo injector needle grinding machine	1 pc
DL-UNI20200	Grinding wheel , grit 400	1 pc
DL-NG31290	Extension for installing long parts for grinding	2 pc
DL-NG31309	Pen for dressing the grinding wheel	1 pc
DL-NG31264	Pulley dia.15×3 for nozzle needle	1 pc
DL-NG31264-01	Pulley dia.15×4 for nozzle needle	1 pc
DL-NG31264-02	Pulley dia.15×5 for the valve holder of the piezo injector	1 pc
DL-NG31196	Pulley dia.15×7 for lapping	1 pc
–	Power cable 220 V	1 pc
–	Manual	1 pc

Additional Equipment

For convenient work GR-7400

Image	Description	Qty
	DL-GR1080. Angle measuring kit	1 pc
	DL-GR1090. High Precision Angle Measurement Kit	1 pc
	DL-NG31263. Gauge for setting the angle of 60 degrees	1 pc
	DL-NG31866. Stop extension for DL-GR7300, DL-GR7400, DL-GR7500 machines	1 pc
	DL-UNI20025. Microscope set VGA, HDMI 14 MP	1 pc
	DL-UNI20030. Microscope set USB, HDMI 14 MP	1 pc
	DL-UNI20026. Microscope set HDMI USB 1080P FHD 38MP	1 pc
	DL-UNI20027. Microscope set HDMI USB 1080P FHD 38MP	1 pc
	DL-UNI20032. Microscope set HDMI USB 1080P FHD 37MP	1 pc
	DL-NG50196. Wheel remover with mandrel with spindle taper	1 pc

Additional Equipment

GR-7400

Image	Description	Qty
	DL-NG31253. Mandrel holder for the valve (pin) of the BOSCH piezo injector for grinding it	1 pc
	DL-CR50405-5, DL-CR50405-10, DL-CR50405-15 . Collet cartridge holder (collet) for the valve of BOSCH piezo injectors, runout 1-5; 6-10; 11-15 microns. To restore geometry by grinding. Suitable for BOSCH piezo injectors series 0445115	1 pc
	DL-CR50209-5, DL-CR50209-10, DL-CR50209-15 . Collet cartridge holder (collet) for the valve of BOSCH piezo injectors, runout 1-5; 6-10; 11-15 microns. To restore geometry by grinding. Suitable for BOSCH piezo injectors series 0445115	1 pc
	DL-UNI20200. Grinding wheel, grit of 400	1 pc
	DL-UNI20201. Grinding wheel, grit 200	1 pc
	DL-UNI20202. Grinding wheel, grit 100	1 pc
	DL-UNI20203. Grinding wheel conical, grit 320	1 pc
	DL-UNI20204. Grinding wheel conical, grit 230	1 pc
	DL-GR1050. Wheel holder (mandrel)	1 pc
	DL-GR1060. Shaft for balancing grinding wheel	1 pc
	DL-GR1070. Balancing device	1 pc

Technical Data

GR-7400

Parameter	DL-GR7300	DL-GR7400	DL-GR7500	DL-GR8400
Max. cross travel	± 12.5 mm	± 12.5 mm	± 12.5 mm	± 12.5 mm
Max. longitudinal travel	± 12.5 mm	± 12.5 mm	± 12.5 mm	± 12.5 mm
Worktable swivel angle	270°	270°	270°	270°
Spindle speed	7,300 rpm	7,400 rpm	7,500 rpm	7,400 rpm
Workpiece rotation speed	1,000 rpm (2,000 rpm*)	1,000 rpm (2,000 rpm*)	1,000 rpm (2,000 rpm*)	1,000 rpm (2,000 rpm*)
Main motor voltage	36 V	36 V	36 V	36 V
Speed control	Microprocessor	PWM regulators	PWM regulators	PWM regulators
Power supply voltage	~220 V ± 15%	~220 V ± 15%	~220 V ± 15%	~220 V ± 15%
Overall dimensions (L×W×H)	360×320×280 mm	360×320×280 mm	360×320×280 mm	470×340×300 mm
Housing dimensions (L×W×H)	340×240×260 mm	340×240×260 mm	340×240×260 mm	>370×270×300 mm
Net weight	35 kg	35 kg	35 kg	35 kg